Let one side be x+3 and the other side be x:
1/2*(x+3+x)*9 = 40.5
Multiply both sides by 2:
(x+3+x)*9 = 81
9x+27+9x = 81
18x+27 = 81
Subtract 27 from both sides:
18x = 54
Divide both sides by 18:
x = 3
Therefore the parallels are 3 cm and 6 cm respectively.
Check: 1/2*(6+3)*9 = 40.5 square cm
Height of trapezoid = 2*area/sum of parallel sides
A=h(b+B) divided by 2 * * * * * where A = area h = vertical height b and B are the lengths of the parallel sides.
With the information given it can be any height greater than zero units. If the area was given, or the lengths of the equal sides were given, then the height can be calculated specifically.
Area of a trapezoid = 0.5*(sum of parallel side)*height
Area of a trapezoid = 0.5*(sum of parallel sides)*height
Area of a trapezoid = 0.5*(sum of parallel sides)*height
The formula for finding the area of a trapezoid is (a + b) * h / 2, where a and b are the lengths of the parallel sides, and h is the height of the trapezoid.
Height of trapezoid = 2*area/sum of parallel sides
A trapezoid is a 4 sided quadrilateral which has one pair of parallel sides of different lengths. Its perimeter is the sum of its 4 sides. Its area is: 0.5*(sum of parallel sides)*height
The area of a trapezoid is equal to half the sum of the lengths of the two parallel sides (base1 and base2) multiplied by the height. The formula for the area of a trapezoid is A = (base1 + base2) * height / 2.
A trapezoid is a 4 sided quadrilateral with 1 pair of opposite parallel sides of different lengths. Its perimeter is the sum of its 4 sides. Its area is: 0.5*(sum of parallel sides)*height
-- Add the lengths of the two 'bases' (the two parallel sides). -- Multiply the sum by the height of the trapezoid. -- Take 1/2 of the product. That's the trapezoid's area.
Atrapezoidor trapezium is a quadrilateral with two parallel sides. These two sides are called the bases. Find the average of the lengths of the bases andmultiplyby the perpendicular distance between the parallel sides (the height).bases have lengths a and b, height is h: A = h(a+b)/2
Using your own dimensions area of a trapezoid: 0.5*(sum of parallel sides)*height
A=h(b+B) divided by 2 * * * * * where A = area h = vertical height b and B are the lengths of the parallel sides.
To calculate the area of a trapezoid, you have to know the lengths of three sides because 1/2*(sum of parallel sides)*perpendicular height = area
With the information given it can be any height greater than zero units. If the area was given, or the lengths of the equal sides were given, then the height can be calculated specifically.